/* ==========================================================================
   Blaulicht Sicherheit – Navigation
   ========================================================================== */

/* --------------------------------------------------------------------------
   Header / Navbar
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base),
              padding var(--transition-base);
  padding: var(--space-4) 0;
}

/* Transparenter Header über Hero */
.site-header.is-transparent {
  background: transparent;
}

/* Scrolled-Zustand */
.site-header.is-scrolled {
  background: rgba(13, 27, 42, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
  padding: var(--space-3) 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-icon {
  width: 44px;
  height: 44px;
  background: #464dbf;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.25rem;
  box-shadow: var(--shadow-pink);
  transition: transform var(--transition-base);
}

.nav-logo:hover .nav-logo-icon {
  transform: scale(1.05);
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.nav-logo-tagline {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media screen and (min-width: 901px) {
  .is-transparent .nav-logo-name, 
  .is-transparent .nav-logo-tagline {
    color: inherit
  }
  .nav-toggle {
    display: none;
  }
  .is-transparent .nav-links.is-active {
    color: inherit;
  }
  .is-transparent .nav-link,
  .is-transparent .nav-link:hover {
    color: var(--color-gray-800);
  }
  .nav-mobile-close {
    visibility: hidden;
  }
  .nav-mobile .nav-link::after {
    display: none;
  }
}

/* Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  border-radius: var(--border-radius);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: var(--space-4);
  right: var(--space-4);
  height: 2px;
  background: var(--color-pink);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  border-radius: 1px;
}

.nav-link:hover {
  color: var(--color-white);
  background: rgba(255,255,255,0.08);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-link.is-active {
  color: var(--color-white);
}
.is-transparent .nav-link.is-active {
  color: inherit;
}

/* CTA im Nav */
.nav-cta {
  flex-shrink: 0;
  display: none;
}

/* Mobile Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
  background: none;
  border: none;
  border-radius: var(--border-radius);
  transition: background var(--transition-fast);
}

.nav-toggle:hover {
  background: rgba(255,255,255,0.1);
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Hamburger → X Animation */
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation */
@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  /* Mobile Menu Overlay */
  .nav-mobile {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: var(--color-blue-deep);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
  }

  .nav-mobile.is-open {
    transform: translateX(0);
  }

  .nav-mobile .nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
  }

  .nav-mobile .nav-link {
    font-size: var(--text-2xl);
    padding: var(--space-4) var(--space-8);
    color: var(--color-white);
  }

  .nav-mobile .nav-cta {
    display: block;
    margin-top: var(--space-8);
  }
}

/* --------------------------------------------------------------------------
   Sticky CTA Bar (Mobile)
   -------------------------------------------------------------------------- */
.sticky-cta-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: var(--color-blue-deep);
  padding: var(--space-3) var(--space-4);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
  border-top: 2px solid var(--color-pink);
}

.sticky-cta-bar .btn {
  width: 100%;
}

@media (max-width: 768px) {
  .sticky-cta-bar {
    display: block;
  }

  /* Abstand für sticky bar */
  body {
    padding-bottom: 80px;
  }
}

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  margin-bottom: var(--space-6);
}

.breadcrumb a {
  color: var(--color-blue-mid);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-pink);
}

.breadcrumb-sep {
  color: var(--color-gray-400);
}